Contact
Professor
H. R. Ebrahimi Vishki
Department
of Pure Mathematics
Ferdowsi University of Mashhad
P.O. Box
1159- 91775
Mashhad, Iran
Tel-Fax:
+98-511-8828606
Home: http://vishki.profcms.um.ac.ir
Email: vishki@um.ac.ir, hvishki@yahoo.com
Professor
B. Mashayekhy
Department
of Pure Mathematics
Ferdowsi University of Mashhad
P.O. Box
1159-91775
Mashhad,
Iran
Tel-Fax:
+98-511-8828606
Home: http://bmashf.profcms.um.ac.ir
Email: bmashf@um.ac.ir, bmashayekhyf@yahoo.com